Use 'kick off' to describe the very beginning of activities or initiatives.

Starting Point

'Kick off' implies a decisive action to begin something; it's like pushing the start button.

Initiating Action

In football, 'kick off' refers to the action that starts each half of the game.

Use 'kick off' after halftime to describe the restart of the game.

Use 'kick off' to convey an enthusiastic and energetic beginning.

It often implies an event that creates momentum for further activities.

'Kick off' is a less formal way to say someone has died, often used to soften the news.

This euphemism is usually appropriate for casual conversation, not formal situations.